title: Area variations in selected Medicare procedures.
authors.affiliation: Health Policy Center, Urban Institute, Washington, D.C.
authors.forename: J
authors.initials: J
authors.lastname: Holahan
authors.forename: R A
authors.initials: RA
authors.lastname: Berenson
authors.forename: P G
authors.initials: PG
authors.lastname: Kachavos
mesh_terms: D006296:Health Services / Q000191:economics / Q000706:statistics & numerical data*; D006278:Medicare / Q000706:statistics & numerical data*; D008511:Medicine; D013038:Specialization; D014481:United States